WO2009139467A1 - 操作スイッチ及び電子機器 - Google Patents
操作スイッチ及び電子機器 Download PDFInfo
- Publication number
- WO2009139467A1 WO2009139467A1 PCT/JP2009/059063 JP2009059063W WO2009139467A1 WO 2009139467 A1 WO2009139467 A1 WO 2009139467A1 JP 2009059063 W JP2009059063 W JP 2009059063W WO 2009139467 A1 WO2009139467 A1 WO 2009139467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- contact
- holder
- encoder
- conductive piece
- wiring board
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/04—Operating part movable angularly in more than one plane, e.g. joystick
- H01H25/041—Operating part movable angularly in more than one plane, e.g. joystick having a generally flat operating member depressible at different locations to operate different controls
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/11—Movable parts; Contacts mounted thereon with indexing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
- H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
- H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
- H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
- H01H25/065—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/04—Operating part movable angularly in more than one plane, e.g. joystick
- H01H25/041—Operating part movable angularly in more than one plane, e.g. joystick having a generally flat operating member depressible at different locations to operate different controls
- H01H2025/043—Operating part movable angularly in more than one plane, e.g. joystick having a generally flat operating member depressible at different locations to operate different controls the operating member being rotatable around wobbling axis for additional switching functions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/04—Operating part movable angularly in more than one plane, e.g. joystick
- H01H2025/048—Operating part movable angularly in more than one plane, e.g. joystick having a separate central push, slide or tumbler button which is not integral with the operating part that surrounds it
Definitions
- the present invention relates to an operation switch used for an operation unit of a small-sized device such as a digital camera, a mobile phone, or a game machine used for portable use.
- the operation switch used here has a lower surface that is pressed when a pusher provided at the center is depressable, or when a position in a specific rotation direction is depressed by tilting a rotary operation body around it.
- the center switch and the peripheral switch arranged below are pressed, and a signal is extracted from the pressed part and detected.
- a flexible substrate 151 is disposed at a pressure receiving portion that is pressed in correspondence with a pusher or a rotary operation body.
- a central contact 152 disposed on the flexible substrate 151, four peripheral contacts 153 disposed at the upper, lower, left, and right positions around the central contact 152, and an annular contact group 154 for detecting a rotational position disposed in an annular shape are provided. It has been.
- the center contact 152 and the peripheral contact 153 are provided with a push button switch (not shown), and the center contact 152 or any one of them is pressed via the push button switch when the pusher or the rotary operation body is pressed.
- the peripheral contact 153 is conducted. Thereby, it has the structure which detects the detection site
- annular contact group 154 is known in the flexible substrate 151 that is annularly arranged in the arrangement region 155 between the central contact 152 and the peripheral contact 153 (see, for example, Patent Document 1).
- positioned the annular contact group on the outer side of a peripheral contact is also known (for example, refer patent document 2).
- a first contact 157, a second common contact 158, and a second contact 159 are annularly arranged clockwise from the upper first common contact 156. .
- a disk-shaped conductive disk 161 that is rotationally contacted as a movable contact member is provided to the annular contact group 154.
- the conductive disc 161 is cut from the main body side and extended in the opposite direction, and has a common conductive piece 162 having a spring property, a first conductive piece 163, and a plurality of conductive pieces 162, 163, 164 of a second conductive piece 164. Is held in the rotary operation body.
- each of the conductive pieces 162, 163, 164 is phase signals and positions as rotary encoders obtained from the respective contacts 156 to 159 of the annular contact group 154.
- the rotational position and direction of the rotary operation body are detected by the phase difference signal.
- each contact arranged on the flexible substrate is also restricted in the arrangement of the contacts because the flexible substrate is incorporated in a small circular plane region corresponding to the size of the rotary operation body. For this reason, the contact arrangement structure is in an overcrowded state.
- a large number of wiring lines that are drawn from each of these contacts are also subject to restrictions in the arrangement area, requiring wiring lines that can be drawn from both the front and back sides of the flexible substrate. Become.
- the wiring line from the center contact may be forced to intersect with other wiring lines on the flexible board.
- a step is generated at the intersection of the wiring lines, which causes the deterioration of the wiring.
- the arrangement area of the annular contact group is limited, when the conductive pieces are brought into contact with these contact areas, a plurality of conductive pieces are cut and raised in the annular direction from the conductive metal plate to have a spring property. ing.
- each conductive piece cannot be lengthened, and a contact structure in which it is difficult to secure a stable contact pressure with respect to the contact point due to restrictions on the length of the conductive piece. It was.
- the present invention provides a contact structure that requires a large number of contacts for enabling a plurality of switch configurations in a limited narrow plane area of one rotary operation body. It is an object of the present invention to provide an operation switch that can eliminate concentration and an electronic device including the operation switch.
- the present invention relates to a rotary operation body that rotates in a plane direction and is pressed in an axial direction at a plurality of rotational positions in the rotation direction, a movable contact plate for an encoder fixed to a lower surface of the rotary operation body, and the rotation
- a plurality of conductive pieces that are in contact with the movable contact plate for the encoder and are electrically connected to each other and the printed wiring board are arranged on the upper surface, and the holder is moved up and down. And rotating the rotating operation body to detect contact and separation of the
- the present invention provides a pusher that is arranged in the center and pushed down in the vertical direction, and is annularly arranged around the pusher so that it can be pushed down in the axial direction at a plurality of rotational positions.
- the common conductive piece that is always in contact with the spot plate and conducts both, and the first fixed contact that is held by the holder and formed on the printed circuit
- a central opening is provided in the center of the rotary operation body, a shaft body is inserted through the center opening, and a horizontal hole inserted perpendicularly to the axial direction of the shaft body
- An urging member for urging outward from the inside and a sphere disposed at an end of the urging member are provided to be interposed, and the lateral hole is provided in the central opening in the circumferential direction of the inner peripheral surface. It is possible to configure a touch mechanism in which a concave and convex surface for a rotational operation feel is formed so as to face the sphere projecting outward from the sphere and to move the sphere forward and backward.
- the movable contact plate for encoder penetrates at regular intervals in the plane circumferential direction of a conductive metal plate that is a sliding contact surface of the movable contact plate for encoder that contacts the contact for encoder signal output.
- the opening that is opened is fitted to the projections that are projected at regular intervals in the plane circumferential direction on the inner surface side of the rotary operation body, and the front end surface of the fitted projection is fitted to the fitting.
- the plane of the opening after joining can be formed in the same plane.
- the inner space portion formed on the inner surface side of the rotary operation body having the encoder movable contact plate on the inner surface is configured by closing the open surface of the inner space portion with the holder. be able to.
- the conductive piece is extended with elasticity from the holder, and the extended free end side contact is urged against the fixed contact of the printed wiring board. can do.
- the conductive piece is extended more elastically than the holder, and the extended free end side contact is urged against the contact of the encoder movable contact plate.
- the operation switch configured as described above can be operated by being incorporated into various electronic devices. For example, it can be widely applied to digital cameras, medical devices, portable devices, game machines, and the like.
- a contact arrangement area not only a limited planar area of a printed wiring board is used as a contact arrangement area, but also a contact distributed structure that can be used as an area in which a contact can be arranged in the space above it. Can be made possible. For this reason, the concentration of the contacts on the printed wiring board can be eliminated, and a stable contact structure can be secured.
- wiring on only one side of the printed wiring board is possible even when wiring lines are drawn on the printed wiring board drawn out from the contacts, and the wiring lines do not cross each other. Further, when arranging the contacts on the printed wiring board, the degree of freedom of the arrangement can be widened, so that the arrangement efficiency of the contacts is improved, and the optimum arrangement of the contacts can be realized.
- the length of the conductive piece for contacting these widely dispersed contacts with a high degree of freedom can be made sufficiently long.
- the contact pressure of each conductive piece with respect to the contact is stabilized, and a contact structure having excellent reliability and durability is possible.
- the rear view of the digital camera provided with the operation switch.
- the external appearance perspective view of an operation switch The exploded perspective view which looked at the operation switch from the upper part.
- FIG. 11 is a cross-sectional view taken along line AA in FIG.
- the perspective view which shows the stationary contact of a flexible substrate, and a contact corresponding
- Explanatory drawing which shows the corresponding state of a lower contactor and the fixed contact of a flexible substrate.
- the longitudinal cross-sectional view which shows the other example of a presser.
- the top view which shows the contact arrangement state of the conventional flexible substrate.
- the perspective view which shows the relationship with the electrically conductive disk which carries out rotation contact to the fixed contact of the conventional flexible substrate.
- FIG. 1 is a rear view of the digital camera 12 provided with the operation switch 11.
- the operation switch 11 is disposed adjacent to the display 13 of the digital camera 12 and is used as a switch for setting the shooting conditions of the digital camera 12 and a switch for selecting a stored photograph.
- FIG. 2 is an external perspective view of the operation switch 11
- FIG. 3 is an exploded perspective view of the operation switch 11 as viewed from above
- FIG. 4 is an exploded perspective view of the operation switch 11 as viewed from below.
- the operation switch 11 includes a rotary operation body 14, an encoder movable contact plate 15, a common conductive piece 16, a first conductive piece 17, a second conductive piece 18, a holder 19, and a holder connecting plate 20 from above. And a pusher 21, a dustproof cover 22, a sheet 23, a push button switch 24, a flexible substrate 25, and a base 26.
- the rotary operation body 14 is formed in a disc shape with a synthetic resin material, and is provided as an annular cap having a pusher insertion hole 27 penetrating in the axial direction of the central portion of the disc shape.
- a large number of anti-slip protrusions 28 that are elongated in the radial direction are equally arranged on the upper surface of the rotary operation body 14.
- an annular recess 31 surrounded by an annular flat surface portion and an inner peripheral flange 29 and an outer peripheral flange 30 projecting downward is formed on the lower surface.
- a plurality of arc-shaped band-like protrusions 32 are equally provided in the circumferential direction so as to protrude at regular intervals.
- a plurality of small shaft portions 33 are provided on the inner peripheral side so as to be equally divided in the circumferential direction.
- the outer peripheral surface of the inner peripheral flange 29 is provided with a concave groove 34 formed in a concave shape along the axial direction and equally divided in the circumferential direction.
- an uneven surface 35 for rotating operation is formed on the inner peripheral surface of the inner peripheral flange 29 corresponding to the pusher insertion hole 27.
- the irregular surface 35 has irregularities alternately in the circumferential direction, and 12 irregularities are formed in the circumferential direction so as to coincide with the phase signal of the encoder.
- a plurality of locking projections 36 for connecting the holder 19 in the circumferential direction are provided at the lower end of the inner peripheral flange 29 so as to be equally divided.
- An encoder movable contact plate 15 to be described later is fitted and attached to an annular recess 31 formed on the inner surface of the rotary operation body 14, and a holder connecting plate 20 to be described later is fitted to the lower end of the inner peripheral flange 29. Can be attached.
- the encoder movable contact plate 15 described above is formed of an annular conductive metal plate having a size that can be fitted into the annular recess 31, and the arcuate shape for outputting encoder signals at regular intervals in the plane circumferential direction.
- An opening 37 having substantially the same shape that can be fitted in correspondence with the belt-like protrusion 32 is opened.
- a shaft hole 38 having substantially the same shape that can be fitted to the shaft portion 33 is formed on the inner peripheral side of the opening portion 37.
- an inner peripheral convex portion 39 having substantially the same shape that can be fitted in correspondence with the concave groove 34 is formed on the inner peripheral surface of the encoder movable contact plate 15.
- the opening 37, the shaft hole 38, and the inner peripheral convex portion 39 formed in the encoder movable contact plate 15 are replaced with the protrusion 32, the shaft portion 33, and the concave groove 34 formed on the lower surface side of the rotary operation body 14.
- the encoder movable contact plate 15 is fitted and fixed to the lower surface side of the rotary operation body 14.
- the flat portion exposed on the lower surface of the encoder movable contact plate 15 attached to the lower surface of the rotary operation body 14 becomes the slidable contact surface 40, and upper contacts 17a and 18a to be described later come into contact therewith.
- the slidable contact surface 40 is formed so as to be flat and free from irregularities. That is, the sliding contact surface 40 of the encoder movable contact plate 15 and the tip exposed surface 32a of the protrusion 32 that penetrates the opening 37 are set to be in the same plane. Thereby, the stable contact property of the upper contacts 17a and 18a, which will be described later, with respect to the sliding contact surface 40 is ensured.
- the common conductive piece 16 is formed of a conductive metal plate and has, for example, four mounting holes 41 at the base end portion. Then, it is divided into two forks from the base end portion to the free end side, and one of them is provided as an upper contact 16a extended upward with an elastic force, and the other is provided downward with an elastic force. It is provided as the extended lower contact 16b.
- the first conductive piece 17 is provided for detecting the first signal. Like the common conductive piece 16, the first conductive piece 17 has a mounting hole 41 at the base end portion.
- the upper contact 17a is provided as an upper contact 17a extended upward and the other is provided as a lower contact 17b extended downward with elasticity.
- the second conductive piece 18 is provided for detecting the second signal. Similarly, the second conductive piece 18 has a mounting hole 41 at the base end, and one of the free ends divided into two is extended upward with elasticity.
- the upper contact 18a is provided as an extended upper contact 18a, and the other is provided as a lower contact 18b that is extended downward with an elastic force.
- each electroconductive piece 16,17,18 is extended in parallel with the inner peripheral side and the outer peripheral side.
- These three conductive pieces 16, 17, 18 are held by a holder 19, which will be described later, and are divided into three equal parts in the circumferential direction.
- the outer peripheral side of the slidable contact surface 40 is always a common contact side where a constant signal is obtained through conduction, and the inner peripheral side is a pulse signal output side where an intermittent signal is obtained. For this reason, the outer peripheral side of the common conductive piece 16 becomes the upper contact 16 a, and the upper contact 16 a becomes a common contact that is always conductive on the rotation locus of the sliding contact surface 40.
- the first conductive piece 17 and the second conductive piece 18 have upper contacts 17 a and 18 a on the inner peripheral side, and the upper contacts 17 a and 18 a are intermittently connected to the openings 37 on the rotation locus of the sliding contact surface 40. Is a contact that outputs a pulse signal as a rotary encoder.
- each of the conductive pieces 16, 17, 18 has a bifurcated free end portion on the upper contact 16a, 17a, 18a side and the lower contact 16b, 17b, 18b side. Further, the free end side is provided on the divided contacts 16c, 17c and 18c which are divided into two forks. Thereby, a stable elastic action is obtained by the long extending contact and the divided contact at the free end side of each conductive piece 16, 17, 18 and a smooth contact action is obtained when contacting the contact.
- the above-described holder 19 is formed of a synthetic resin material, and is an annular body having a size capable of closing the annular recess 31 of the rotary operation body 14 in a planar manner, and is supported on the base 26 described later in a non-rotating manner.
- the conductive pieces 16, 17, 18 are attached to the upper surface of the holder 19 by fitting the mounting holes 41 of the conductive pieces 16, 17, 18. Thereby, the upper contacts 16a, 17a, 18a are attached in a state of extending obliquely upward suitable for contact.
- arc-shaped belt-like lower contactor insertion holes 43, 44, 45 opened in the circumferential direction of the upper surface of the holder 19 are opened, and the lower contactor insertion holes 43, 44, 45 are opened.
- the lower contacts 16b, 17b, and 18b are inserted downward to extend obliquely downward suitable for contact from the lower surface of the holder 19.
- annular flat portion 46 is formed on the outer peripheral side of the upper surface of the holder 19, and this annular flat portion 46 corresponds to the lower end of the outer peripheral flange 30 of the rotary operation body 14.
- annular edge 47 protruding in an annular shape is formed on the inner peripheral side of the annular flat surface portion 46, and the annular edge 47 corresponds to the inner peripheral surface of the outer peripheral flange 30 of the rotary operation body 14.
- a holder inner peripheral flange 48 protrudes from the inner peripheral side of the upper surface of the holder 19, and this holder inner peripheral flange 48 corresponds to the outer peripheral surface of the inner peripheral flange 29 of the rotary operation body 14.
- the holder 19 planarly closes the open surface of the annular recess 31 formed between the opposing surfaces of the lower surface of the rotary operation body 14 and the upper surface of the holder 19, and the upper contacts 16a and 17a described above. , 18a are elastically displaced on the sliding contact surface 40 to secure a space for stable contact.
- holding pieces 49 are projected outwardly on four outer circumferential surfaces that differ every 90 degrees in the circumferential direction of the holder 19, and the holding pieces 49 are held by the base 26 described later.
- the pressing protrusions 50 are provided so as to correspond to four pressing positions that differ every 90 degrees in the circumferential direction.
- an annular storage recess 51 for storing and guiding a holder connecting plate 20 described later is provided on the inner peripheral side of the lower surface.
- the holder 19 is connected to the rotary operation body 14 by a holder connecting plate 20 described later while holding the conductive pieces 16, 17 and 18.
- the above-described holder connecting plate 20 is a metal annular disc having a size that can be accommodated in the annular accommodating recess 51 of the holder 19, and each of the rotating operation bodies 14 is locked in the circumferential direction of the annular disc.
- a plurality of openings are provided at positions corresponding to the protrusions 36, and a locking hole 52 for engaging and locking the locking protrusions 36 is provided.
- the rotating operation body 14, the holder 19, and the holder connection plate 20 are connected in a stacked state in this order by the fitting and locking action of the holder connection plate 20.
- a touch mechanism K (see FIG. 11) is provided at the center of the rotary operation body 14 so that when the operator rotates the rotary operation body 14 with a fingertip, the rotational operation feel can be clearly obtained.
- the touch mechanism K includes a pusher insertion hole 27 that is opened at the center of the rotary operation body 14 and a pusher 21 that will be described later.
- the above-described pusher 21 is formed in a cylindrical shape from a synthetic resin material, and is inserted into the pusher insertion hole 27 of the rotary operation body 14.
- a horizontal hole 53 is provided in a horizontal direction orthogonal to the cylindrical axial direction, and a coil spring 54 urged outward from the inside of the horizontal hole 53 is provided opposite to both ends of the coil spring 54.
- a spherical body 55 is interposed.
- the spheres 55 positioned at both ends of the coil spring 54 are uneven surfaces 35 for touching the rotary operation of the pusher insertion hole 27.
- the spherical body 55 applies a constant urging force to the rotary operation body 14. With this urging force, each time the rotation operation body 14 is rotated to rotate to the pressing operation position, the sphere 55 moves forward and backward along the uneven surface 35, and the urging force changes, so the rotation resistance of the rotation operation body 14 changes. Make them different. Thereby, a clear click feeling is obtained. Further, in this case, since the coil spring 54 and the sphere 55 can be interposed inside the horizontal hole 53, the arrangement space of the pusher 21 can be used effectively.
- recesses 56 for lifting guides having the lower end and outer peripheral surface of the presser 21 as open surfaces are axially arranged Is formed.
- the recess 56 is guided in the pressing direction by a pusher guide piece 64 of the base 26 described later.
- a pressing protrusion 57 is provided at the center of the lower surface corresponding to the pressing position, and the pressing protrusion 57 presses a center switch S1 of a dome switch 58 described later.
- FIG. 9 is an external perspective view of the dome switch
- FIG. 10 is a plan view of the operation switch
- FIG. 11 is a cross-sectional view taken along line AA in FIG. 10 showing the internal structure of the operation switch
- FIG. FIG. 13 is an explanatory view showing a correspondence state between the lower contact and the fixed contact of the flexible substrate.
- a dome switch 58 (see FIG. 9) is provided below the holder 19 with a pressing stroke space 19B (see FIG. 11) therebetween.
- a dustproof cover 22 formed in a truncated cone shape by a synthetic resin material that seals the space 19B from the outside. .
- the dome switch 58 is formed by laminating the sheet 23, the push button switch 24, and the flexible substrate 25 in this order, and by attaching the lower flexible substrate 25 to the upper surface of the base 26, A dome switch 58 is mounted.
- the flexible substrate 25 has a central fixed contact 59 at the center as a printed wiring board, and peripheral fixed contacts 60 on four sides of the periphery. Further, a common fixed contact 61, a first fixed contact 62, and a second fixed contact 63 are equally divided into three in the circumferential direction that does not overlap with the peripheral fixed contact 60.
- push button switches 24 are mounted in correspondence with a total of five of one central fixed contact 59 and four peripheral fixed contacts 60, and the upper surface thereof is covered with the sheet 23 and pushed to a fixed position on the flexible substrate 25.
- the button switch 24 is pasted so as not to move.
- the central switch S1 installed corresponding to the pressed position where the pusher 21 is pressed and the four peripheral switches S2 installed corresponding to the pressed positions where the rotary operation body 14 is pressed are configured. Is done.
- the base 26 is formed of a metal disk that is slightly larger than the rotary operation body 14, and a pusher guide piece 64 that can be engaged with the concave portions 56 on both sides of the pusher 21 is provided upright from the bottom.
- a retracting port 65 is provided at each of the corresponding positions of the upper flexible substrate 25 and the sheet 23 corresponding to the pusher guide piece 64 so as to pass therethrough, thereby preventing the pusher guide piece 64 from protruding upright. I am trying not to.
- the common fixed contact 61, the first fixed contact 62, and the second fixed contact 63 are similarly provided with a retraction opening 66 in the sheet 23 so that they are exposed on the upper surface, and the lower contact 16b, The contact with 17b, 18b is enabled.
- an up-down guide piece 67 having an inverted concave shape is provided upright from the bottom surface of the four sides.
- the raising / lowering guide piece 67 is provided so that the pressing stroke length can be raised and lowered by engaging the holding piece 49 of the holder 19 in an inverted concave shape.
- the uppermost rotary operation body 14 held by the holder 19 by the holding pieces 49 engaged and held by the four lifting guide pieces 67 is allowed to tilt in accordance with the direction when pressed. Accordingly, the rotary operation body 14 is operated with a constant pressing stroke amount while being slightly tilted.
- the operation switch 11 configured as described above will be described.
- the five push button switches 24 provided in the dome switch 58 have a semicircular dome shape, and the middle and high portions thereof are respectively It faces the lower ends of the pressing protrusions 50 and 57.
- These push button switches 24 are elastically displaced in the vertical direction in response to the pressing force from above, and are recessed when the pressing force is received.
- the push button switch 24 returns and returns to the original height position. It becomes a dome shape and is prepared for the next press. Further, since the fixed contact of the flexible substrate 25 corresponding to the push button switch 24 is not pressed, it is non-conductive and no detection signal is output.
- the pusher 21 When the pusher 21 is pressed down, the pusher 21 receives the pressing force and the pressing stroke sinks, and the pushbutton switch 24 in the center is pushed. A signal from the central fixed contact 59 is output by contacting the conductor 59 in a planar manner. Then, when the pressing force of the pusher 21 is released, the push button switch 24 is elastically restored, and the pusher 21 is pushed upward through the pressing protrusion 57 to return to the original position.
- the rotary operation body 14 when the rotary operation body 14 is pressed, a pressing force is received at the specific position where the pressing operation is performed. At this time, the rotary operation body 14 pushes the push button switch 24 corresponding to the specific position via the push protrusion 50, and the push button switch 24 makes a planar contact with the peripheral fixed contact 60 in the push direction and conducts it. The signal from the peripheral fixed contact 60 is output. Thereafter, when the pressing force of the rotary operation body 14 is released, the push button switch 24 is elastically restored, and the holder 19 is pushed upward via the pressing protrusion 50. Thereby, the rotary operation body 14 returns to the original position.
- the upper encoder movable contact plate 15, the middle conductive pieces 16, 17, 18 and the lower flexible substrate 25 are dispersed in the vertical direction. 3 layer structure.
- the lower contacts 16b, 17b, 18b are non-rotating, and the encoder contact is removed from the lower flexible board 25 so that it becomes wider.
- the fixed contacts can be widely dispersed in the lower planar area, and the correspondence to the fixed contacts becomes easy. For this reason, as shown in FIG. 13B, a stable elastic action is obtained by the elastic action of the elongated contactor and the elastic action of the divided contactor at the free ends of the lower contacts 16b, 17b, and 18b. The contactor stably contacts the fixed contact.
- the upper space from the upper layer corresponding to the closed space 19A to the middle layer is a fixed space that does not fluctuate by the pressing operation, and from the middle layer corresponding to the pressing stroke space 19B.
- the space below the lower layer is a variable space that changes with each pressing operation. Therefore, when the rotary operation body 14 is pressed, only the lower contacts 16b, 17b, 18b extending to the lower layer region are elastically displaced so as to be compressed in the pressing direction.
- the upper contacts 16a, 17a, and 18a extended to the upper layer region are not compressed by the pressing operation force, and thus do not receive an external force. For this reason, the upper contacts 16a, 17a, and 18a extending to the upper layer area are not subjected to external force in the pressing direction, so the load is small and the stress design of the spring of the conductive piece is facilitated, and the durability is improved.
- the contact arrangement pattern inevitably becomes smaller, and the influence on the output signal due to the misalignment of the flexible substrate 25, the displacement of the arrangement pattern, etc. is considered to be larger. Since the conductive pieces 16, 17 and 18 are fixed to the rotating holder 19, the contact performance is improved because the non-rotating conductive pieces 16, 17 and 18 and the fixed contact of the non-rotating flexible substrate 25 are not rotated. In addition, the number of elements that cause contact displacement with the fixed contacts 61, 62, and 63 is reduced, and a stable output signal is always obtained.
- FIG. 14 shows another example of the presser 21, and the presser 21 is configured by interposing a spring seat 141 between a coil spring 54 inserted through the lateral hole 53 and a sphere 55.
- the spring seat 141 has a circular arc shape along the spherical surface of the sphere 55 and is configured to come into surface contact, so that the biasing pressure of the coil spring 54 is more stable to the sphere 55 than that of the line contact without the spring seat. It is set to communicate.
- the biasing member of this invention corresponds to the coil spring 54 of the embodiment, Similarly, The central opening corresponds to the pusher insertion hole 27, The shaft body corresponds to the pusher 21, The electronic device corresponds to the digital camera 12,
- the present invention is not limited to the configuration of the above-described embodiments, and many embodiments can be obtained based on the technical idea shown in the claims.
- the operation switch 11 in which three conductive pieces are combined is shown, but many more may be combined.
- the operation switch 11 provided with the pusher 21 was shown in the above-mentioned Example, it can also be comprised as an operation switch only of the rotary operation body 14 without the pusher 21.
- FIG. 1 the operation switch 11 provided with the pusher 21 was shown in the above-mentioned Example, it can also be comprised as an operation switch only of the rotary operation body 14 without the pusher 21.
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- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
12…デジタルカメラ
14…回転操作体
15…エンコーダ用可動接点板
16,17,18…導電片
16a,17a,18a…上接触子
16b,17b,18b…下接触子
19…ホルダ
21…押子
22…防塵カバー
25…フレキシブル基板
26…ベース
61,62,63…固定接点
図面は中央部とその周辺を押下操作可能な多方向押下型の操作スイッチを示し、図1は操作スイッチ11を備えたデジタルカメラ12の背面図である。この操作スイッチ11は、デジタルカメラ12の表示器13に隣接して配置され、該デジタルカメラ12の撮影条件等の設定用スイッチ、及び保存された写真の選択用スイッチなどに用いられる。
この操作スイッチ11が押下待機されている状態では、図11に示すように、ドームスイッチ58に備えられている5個の押しボタンスイッチ24が半円形のドーム型を有し、その中高部が各押下突起50,57の下端と対向している。これらの押しボタンスイッチ24は上方からの押下力に対応して上下方向に弾性変位し、押下力を受けたときに凹み、押下力が開放されると復帰し、元の高さ位置にもどるとドーム型になって、次の押下に備えられる。また、押しボタンスイッチ24と対応するフレキシブル基板25の固定接点は、押下されていないため非導通で検知信号は出力されない。
この発明の付勢部材は、実施例のコイルスプリング54に対応し、
以下同様に、
中央開口部は、押子挿通孔27に対応し、
軸体は、押子21に対応し、
電子機器は、デジタルカメラ12に対応するも、
この発明は、上述の実施例の構成のみに限定されるものではなく、請求項に示される技術思想に基づいて多くの実施の形態を得ることができる。
Claims (19)
- 平面方向に回転し、その回転方向の複数の回転位置で軸方向に押下操作される回転操作体と、
前記回転操作体の下面に固定されたエンコーダ用可動接点板と、
前記回転操作体を回転可能に保持するホルダと、
前記回転操作体の押下操作に対応して操作される押しボタンスイッチと、
前記押しボタンスイッチを複数備えたプリント配線基板と、
前記ホルダに保持されて前記プリント配線基板に形成されている共通固定接点と前記エンコーダ用可動接点板に常時接触し、両者を導通する共通導電片と、
前記ホルダに保持されて前記プリント配線基板に形成されている固定接点別に接触すると共に前記エンコーダ用可動接点板にも接触し、両者を導通する複数の導電片と、
前記プリント配線基板を上面に配置し、前記ホルダを上下動可能に支持したベースとを備え、
前記回転操作体を回動することにより、前記エンコーダ用可動接点板と前記複数の導電片の接離を検出して回動方向を検出する一方、前記回転操作体を押圧することにより、前記ホルダを介して前記押しボタンスイッチを操作することを特徴とする
操作スイッチ。 - 中央に配置されて垂直方向に押下操作される押子と、
前記押子の周囲に回転可能に環状に配置され、その回転方向の複数の回転位置で軸方向に押下操作される回転操作体と、
前記回転操作体の下面に固定されたエンコーダ用可動接点板と、
前記回転操作体を回転可能に保持するホルダと、
前記押子の押下操作に対応して操作される中央の押しボタンスイッチと、
前記回転操作体の押下操作に対応して操作される周辺の押しボタンスイッチと、
前記複数の押しボタンスイッチと、共通導電片の接触用に備えられる共通固定接点と、導電片の接触用に備えられる第1固定接点、第2固定接点とを備えたプリント配線基板と、
前記ホルダに保持されて前記プリント配線基板に形成されている共通固定接点と前記エンコーダ用可動接点板に常時接触し、両者を導通する前記共通導電片と、
前記ホルダに保持されて前記プリント配線基板に形成されている第1固定接点に接触すると共に前記エンコーダ用可動接点板にも接触し、両者を導通する第1導電片と、
前記ホルダに保持されて前記プリント配線基板に形成されている第2固定接点に接触すると共に前記エンコーダ用可動接点板にも接触し、両者を導通する第2導電片と、
前記プリント配線基板を上面に配置し、前記ホルダを上下動可能に支持したベースとを備え、
前記回転操作体を回動することにより、前記エンコーダ用可動接点板と前記第1の導電片と前記第2の導電片の接離を検出して回動方向を検出する一方、前記回転操作体または押子を押圧することにより、前記ホルダを介して前記押しボタンスイッチを操作することを特徴とする操作スイッチ。 - 前記回転操作体の中央に中央開口部を設け、該中央開口部に軸体を挿通し、その軸体の軸方向と直交して挿通する横孔に、該横孔の内部から外向きに付勢する付勢部材と、該付勢部材の端部に配置される球体とを介在させて設け、
前記中央開口部には、内周面の周方向に、前記横孔から外向きに突出する前記球体と対向して該球体を進退させる回転操作感触用の凹凸面を形成した感触機構を構成してなる請求項1に記載の操作スイッチ。 - 前記エンコーダ用可動接点板は、
エンコーダ信号出力用に前記接触子が接触する該エンコーダ用可動接点板の摺接面である導電金属板の平面周方向に一定間隔毎に貫通して開口されている開口部を、前記回転操作体の内面側の平面周方向に一定間隔毎に突設されている突部に嵌合させ、その嵌合した突部の先端面と、嵌合後の開口部の平面とを同一平面に形成した請求項1から3の何れか1項に記載の操作スイッチ。 - 前記エンコーダ用可動接点板を内面に有する回転操作体の内面側に形成される内方空間部に対し、その内方空間部の開放面を前記ホルダにより閉鎖した
請求項1から3の何れか1項に記載の操作スイッチ。 - 前記エンコーダ用可動接点板を内面に有する回転操作体の内面側に形成される内方空間部に対し、その内方空間部の開放面を前記ホルダにより閉鎖した
請求項4に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をプリント配線基板の固定接点に向けて付勢対接させた
請求項1から3の何れか1項に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をプリント配線基板の固定接点に向けて付勢対接させた
請求項4に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をプリント配線基板の固定接点に向けて付勢対接させた
請求項5に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をエンコーダ用可動接点板の接点に向けて付勢対接させた
請求項1から3の何れか1項に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をエンコーダ用可動接点板の接点に向けて付勢対接させた
請求項4に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をエンコーダ用可動接点板の接点に向けて付勢対接させた
請求項5に記載の操作スイッチ。 - 前記導電片は、ホルダより弾性を有して延出され、その延出された自由端側の接触子をエンコーダ用可動接点板の接点に向けて付勢対接させた
請求項6に記載の操作スイッチ。 - 前記ホルダとプリント配線基板とが対向する押下ストローク用の対向空間に対し、その周囲に外部と遮断してシールする防塵カバーを備えた
請求項1から3の何れか1項に記載の操作スイッチ。 - 前記ホルダとプリント配線基板とが対向する押下ストローク用の対向空間に対し、その周囲に外部と遮断してシールする防塵カバーを備えた
請求項4に記載の操作スイッチ。 - 前記ホルダとプリント配線基板とが対向する押下ストローク用の対向空間に対し、その周囲に外部と遮断してシールする防塵カバーを備えた
請求項5に記載の操作スイッチ。 - 前記ホルダとプリント配線基板とが対向する押下ストローク用の対向空間に対し、その周囲に外部と遮断してシールする防塵カバーを備えた
請求項6に記載の操作スイッチ。 - 前記ホルダとプリント配線基板とが対向する押下ストローク用の対向空間に対し、その周囲に外部と遮断してシールする防塵カバーを備えた
請求項7に記載の操作スイッチ。 - 請求項1から18の何れか1項に記載の操作スイッチを備えたことを特徴とする電子機器。
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US9768746B2 (en) | 2013-09-10 | 2017-09-19 | Bose Corporation | User interfaces and related devices and systems |
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CN107229341B (zh) * | 2017-06-30 | 2020-12-01 | 努比亚技术有限公司 | 终端控制指环、终端的操控方法及计算机可读存储介质 |
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JP2005317337A (ja) * | 2004-04-28 | 2005-11-10 | Teikoku Tsushin Kogyo Co Ltd | 多方向押圧型スイッチ |
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JPS5527930U (ja) * | 1978-08-10 | 1980-02-22 | ||
JP2003296006A (ja) * | 2001-06-01 | 2003-10-17 | Sony Corp | 情報入力装置とそれを用いた電子機器 |
JP2005317337A (ja) * | 2004-04-28 | 2005-11-10 | Teikoku Tsushin Kogyo Co Ltd | 多方向押圧型スイッチ |
JP2006179394A (ja) * | 2004-12-24 | 2006-07-06 | Teikoku Tsushin Kogyo Co Ltd | クリック機構 |
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CN102194598A (zh) * | 2010-03-04 | 2011-09-21 | 欧姆龙株式会社 | 操作开关及便携式终端 |
US9768746B2 (en) | 2013-09-10 | 2017-09-19 | Bose Corporation | User interfaces and related devices and systems |
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